In the field of night vision, thermal vision is a little different. Used in the first instance by the armed forces for strategic purposes, then quickly adopted by hunters and various imaging professionals, the technology of thermal vision is becoming more popular and reaching the mainstream market. Regarding a night vision lambda, the omnipresence of these devices in our lives that we all have more or less knowledge of the operating mode of these devices, but what about the thermal vision, do you know its mode of operation and the various utilities that you could have? The VN Magazine team has studied the issue for a long time, and here we present, exclusively, our new file dedicated to the field of thermal vision and its technology.
What is the operating principle of a thermal vision?
As we saw previously in our file devoted to the principle of operation of a night vision, there is a common point between the thermal vision and the technology of tubes with luminous amplification; I named: infrared. There are several types of infrared, each located in a different wavelength:
- Near-infrared, this wavelength is partially visible to the naked eye and is used by some first-generation night vision devices and a large majority of night vision surveillance cameras.
- The average infrared, this wavelength is the one used by our remote controls and home appliances.
- Thermal Infrared, this wavelength is here that which interests us and which is used by our devices with thermal vision. It is also the most present in the infrared spectrum, which allows our tools to be extremely efficient and offer a wide and varied range of use.
Does thermal vision amplify infrared?
What does the image obtain by a thermal vision device look like?
From the outset, when we image the rendering of an image taken with a thermal vision device, we imagine it represented in color ranging from blue, for cold colors, to red for warm temperatures see white to represent the highest temperatures. Today’s most advanced devices do not stop at this color range. This is particularly the case of the FLIR ONE Pro or the SCOUT TK, which offers several rendering modes.
What is the use of thermal vision?
- Thermal observation techniques are now used in a wide variety of sectors and are not limited to a night vision lens.
- It helps to shoot your target correctly.
- Individuals use it to observe animals and hunters locate game. These devices have also saved lives since they are used in many trades related to first aid.
- It is indeed the firefighters who make the most extensive use. Thanks to these devices, it is possible for them to search for victims at night, as in the case of a road accident. They also use it to detect fires located in places not easily visible to the naked eye.
- The army and the police also use them often during their night missions. They can also have a different use as in the construction sector, where they are used to detect specific insulation faults of a building.
- Even more bizarre, some cinemas use them today to try to detect thugs who would have the idea of filming the films projected in the room. Finally, they are also used in the medical field to identify feverish behavior or analyze the evolution of a disease.